Technical Assigment #2 - engr.psu.edu · PDF fileTechnical Assignment 2: Construction Project...

Baltimore Washington Medical Center Women’s Center and Inpatient Tower Glen Burnie, MD

Megan Wortman Construction Management Consultant: John Messner

Technical Assigment #2

Technical Assignment 2: Construction Project Management November 2, 2007

Baltimore Washington Medical Center Women’s Center and Inpatient Tower Glen Burnie, MD Megan Wortman Construction Management Consultant: John Messner

1

Table of Contents

Executive Summary

Detailed Project Schedule Pages 3-8

Site Layout Planning Pages 9-13

Assemblies Estimate Pages 14

Detailed Structural Systems Estimate Page 15-19

General Conditions Estimate Page 20-21

Appendix A Pages 22-30



2

Executive Summary

Technical Assignment 2 addresses the cost and methods analysis for the Baltimore Washington Medical Center- Women’s Center and Inpatient Tower. The assignment includes a detailed project schedule, a site layout plan for the superstructure phase, an exterior façade assemblies estimate, a detailed structural systems estimate, and a general conditions estimate. This technical analysis primarily focuses on the superstructure of the tower. Technical Report 2 breaks down the various systems of the project in order to gain a better understanding of the costs and methods associated with the construction process.

After analyzing the costs and methods associated with the construction of the tower, it is apparent that the project as a whole is very complex. The detailed project schedule illustrates the construction of the various systems used for the project. The schedule is grouped by trade, which allows the project staff along with each subcontractor to easily visualize each system. Because the systems’ sequences overlap, there needs to be a great deal of coordination to manage each trade. The site plan is separated into two main sections, which include the Patient Tower and West Lobby Area. By separating these two areas, the trades could work on the areas simultaneously. The detailed structural systems estimate along with the exterior façade assemblies estimate show the complexity of the systems. Because this building ties into the existing hospital, there are many challenges for designing the structure and façade. After looking at the structure, it is apparent that more than one structural system needed to be used. The façade system also needed to match the existing buildings yet have an aesthetic appearance; therefore, multiple systems were used to create this style. When comparing the general conditions estimate to the actual budget, it seemed as though the actual budget was fairly low for the size and complexity of the project.



3

Detailed Project Schedule

***Please refer to pages 5-8 for the gantt bar chart schedule for the BWMC Women’s Center and Inpatient Tower.

The following detailed project schedule for the Baltimore Washington Medical Center-Women’s Center and Inpatient is grouped by trade. The concrete structure was poured by floors with 4 phases per floor. The three phases for the Patient Tower began at the south end and moved to the north end. The fourth phase is the West Lobby Area, which is attached to the north-east end of the Patient Tower. (See new tower figure on following page) The steel truss, which is located above the existing mechanical room, was erected in three sections. Each section was erected before the concrete structure was placed for those levels. The hollow-core precast planks were placed by level after the steel truss was erected. During the placement of the concrete structure, the erection of the bridges began with the south bridge followed by the north bridge. As the concrete structure was finishing, the exterior wall framing and sheathing began on level 1.

The MEP equipment was installed at various times depending on the location of the equipment. Once level three of the concrete structure was placed, the MEP rough-ins began on the lower level and worked up the levels as the concrete structure was still being placed. The MEP rough-in was sequenced in the following order:

• Plumbing Mains and Branches • HVAC Mains and Branches • Ductwork • Primary Electrical Feeders • Plumbing Fixture Carriers • Plumbing In-Wall Rough-In • Electrical In-Wall Rough-In • Duct VAV Boxes • Medical Gas Rough-In • Sprinkler Mains and Branches • Electrical Systems Cable Tray • HVAC Rough-In • Plumbing Insulation • Fire Alarm System Rough-In • Duct Insulation • HVAC Insulation • In-Wall Inspection





After the MEP rough-ins began on each floor, the interior fit-out process would begin. The Patient Tower is planned to be turned over in two phases. The first phase consists of the lower level through level two, and the second phase is levels three through six. Once the interior fit-out and finishes were complete for each phase, the building could be turned over. The interior fit-out process was sequenced in the following order:

Interior Fit-out/ Finishes

• Layout Top and Bottom Track and Door Frames • Interior Wall Framing • Interior Drywall • Tape and Mud Drywall • Prime and 1st Coat Paint • Ceiling Grid • Flooring • Ceramic Tile

BWMC-Women’s Center and Inpatient Tower Sequencing

• Doors and Hardware • Millwork/Casework/Cabinetry • Light Fixtures • Toilet Accessories • Miscellaneous Specialties

T1

T2

T3

West Lobby (WL)

• Ceiling Tile • Final Paint

4





5





6





7

Technical Assignment 2: Construction Project Management November 2, 2007 8





9

Site Plan Layout for Superstructure Phase

***Please refer to pages 10-13 for the site plan of the superstructure phase for the BWMC Women’s Center and Inpatient Tower.

The following four images show different views of the site model developed for the BWMC Women’s Center and Inpatient Tower. There are two sections of the new tower. They consist of the Patient Tower and West Lobby Area. As you can see from the model, the site for this new expansion is congested due to the existing hospital and parking garage that surround the construction site.

The site model was designed for the superstructure phase of the building; therefore, it shows the tower crane, mobile crane, concrete pumps and pump trucks, material staging areas, and a material hoist. There are a number of dumpsters and sanitary facilities located around the site. Construction fences also surround the construction areas in order to keep out people around the area

The tower crane is located along the west edge of the Patient Tower. It is placed in the middle area of the tower in order to reach all areas of the Patient Tower. Because the tower crane cannot reach the West Lobby, a hydraulic truck crane is located in front of the West Lobby. Concrete pumps and pump trucks were used to place the concrete structure. One pump truck is usually located at the West Lobby Area. For the Patient Tower, two concrete pumps ran up through the building. A concrete pump truck was also used along the north side of the tower for areas that were often hard to reach by the pumps. As the concrete structure started, a material hoist was erected in the area between the Patient Tower and West Lobby.

In order to avoid people around the area, the material delivery entrance is located on the west edge of the Baltimore Washington Medical Center site. The delivery road to the site, which connects to the main road, Hospital Drive, is used as both an entrance and exit for the delivery trucks.





Material Staging Material

Staging

Material Staging

10





Material Staging

Material Staging

11





Material Staging

12


13



Material Staging

Material Staging




Exterior Façade Assemblies Estimate

***Please refer to Fig. 1 for the Exterior Façade Assemblies Estimate for the BWMC Women’s Center and Inpatient Tower.

An Assemblies Estimate for the exterior façade of the BWMC Women’s Center and Inpatient Tower was developed using the 2007 R.S. Means Assemblies Cost Data. The façade is broken down into four systems with aluminum windows. The square footage of each system was calculated and multiplied by the unit cost for that system. The exterior aluminum windows were also separated into different groups. The majority of the windows consisted of large aluminum glass windows with metal paneling. Small ribbon windows, which resembled the glass curtain wall, were also used as one of the window groups.

Fig. 1 Exterior Façade Assemblies Estimate

Item Description Unit Quantity Mat'l Unit Cost Mat'l Cost Installation Unit Cost Installation Cost Total Cost

$2,481,763

$13,248

2.8'x5' Single Hung Insulated Glass Aluminum Windows Unit 22 $280.00 $6,160 $2,860 $9,020$130.00

SF 2304 $2.46 $5,668 $3.29 $7,580

$38,129

$14,186

$624,960$1,680.00 $840.00

$11.65

$13.20 $9,134

$16,124Exterior Aluminum Windows

Ribbed 4" pitch panel; .0.032" thick Natural Aluminum Panel

Total Building Façade Cost:

Glazing Panels: 1" thick, 2 lites, 1/4" float clear SF 1384 $15.90 $22,006

$7.30 $5,052Spandrel Glass: 1/4" plate glass, insulated with 1" fiberglass SF 692

$22,323

9.5'x4.5' Single Hung Insulated Glass Aluminum Windows Unit 248 $416,640 $208,320

$62,689

Glazing Panels: 1" thick, 2 lites, 1/4" float clear

Glass Curtain Wall PanelsSpandrel Glass: 1/4" plate glass, insulated with 1" fiberglass SF

SF $48,622 $11.65 $35,626 $84,2483058 $15.90

3058 $13.20 $40,366 $7.30

$1,106,523

$25,632 $26,630 $52,2628" pitch panel; .040" thick Painted

Aluminum Panel

$376,618 $10.95 $729,905

Metal Siding Panels SF 8322 $3.20$3.08

EIFS SystemCement Board Sheating, 3 5/8"

Metal Studs, 3" EPS SF 66658 $5.65

$148,739 $18.40

Building Façade Assemblies Estimate

$327,759 $476,498Brick Face Composite Wall

Double WytheStandard Face Brick 8" Concrete Block Backup Filled with Perlite SF 17813 $8.35

14



15

Detailed Structural Systems Estimate

***Please refer to Figs. 2-7 for the Detailed Structural Systems Estimate for the BWMC Women’s Center and Inpatient Tower. Refer to Appendix A for the Detailed Structural Systems Takeoff Calculations.

Actual Estimate vs. Calculated Detailed Estimates (RS Means)

Item Actual Cost Estimated Cost

Cast-In- Place Concrete $9,750,000 $7,419,651

Structural Steel $2,589,000 $653,223

Precast Concrete Planks Included in Steel Price $50,516

Composite Slab Included in Concrete Pricing

$400,000

Metal Decking Included in Steel Pricing

$15,883

As shown above, the detailed structural system estimates are varied from the actual budget for the project. The structural steel estimate was much lower than the actual cost. Part of the reason for this difference is that the actual budget includes the precast concrete planks with the structural steel estimate. The planks are included with the structural steel because the same subcontractor is providing both the structural steel and precast planks. The structural steel budget also takes into account the metal decking for the bridges. The cast-in-place concrete estimate is somewhat comparable to the actual budget.





Fig. 2 Cast-In-Place Concrete Structure Estimate

Item Units Quantity Unit Mat'l CosMat'l Cost Unit Labor Cost Labor Cost Unit Equip. Cost Equip. Cost Total Item CostFoundations

Concrete Spread Footings (4000 psi ) cy 787 $108.00 $84,996 $13.25 $10,428 $5.00 $3,935 $99,359Concrete Strip Footings (4000 psi ) cy 167 $108.00 $18,036 $13.25 $2,213 $5.00 $835 $21,084

Footing Rebar#4 Bars lbs. 68131 $0.47 $32,022 $0.31 $21,121 $0 $53,142#6 Bars lbs. 433 $0.47 $204 $0.31 $134 $0 $338#7 Bars lbs. 1206 $0.47 $567 $0.31 $374 $0 $941#8 Bars lbs. 3610 $0.47 $1,697 $0.18 $650 $0 $2,347#9 Bars lbs. 7283 $0.47 $3,423 $0.18 $1,311 $0 $4,734#10 Bars lbs. 51589 $0.47 $24,247 $0.18 $9,286 $0 $33,533

Spread Footing Formwork sfca 8488 $1.81 $15,363 $3.64 $30,896 $46,260Strip Footing Formwork sfca 2634 $2.64 $6,954 $2.96 $7,797 $14,750

5" Slab on Grade (4000psi) cy 479 $108.00 $51,732 $15.30 $7,329 $5.80 $2,778 $61,839Welded Wire Fabric

6"x 6" W2.1 x W2.1 W.W.F. csf 310 $15.40 $4,781 $21.50 $6,675 $0 $11,457Slab Formwork lf 890 $0.29 $258 $1.85 $1,647 $0 $1,905

Mat Slabs (4000psi) cy 426 $108.00 $46,008 $4.97 $2,117 $1.88 $801 $48,926Mat Slab Rebar

#8 Bars lbs. 4699 $0.47 $2,209 $0.18 $846 $0 $3,054#9 Bars lbs. 20006 $0.47 $9,403 $0.18 $3,601 $0 $13,004#10 Bars lbs. 55664 $0.47 $26,162 $0.18 $10,020 $0 $36,182

Mat Slab Formwork sfca 2459 $2.54 $6,245 $5.90 $14,506 $20,751$473,604

Elevated Slabs Typical West Lobby Slab (6000 psi) cy 265

Total West Lobby Slabs (L1‐L9) cy 2387 $130.00 $34,474 $12.40 $3,288 $4.70 $1,246 $39,009Patient Tower Slab Level 1 (5000 psi) cy 766 $114.00 $87,290 $12.40 $9,495 $4.70 $3,599 $100,384

Typical Patient Tower Slabs (L2‐L9) (5000 psi) cy 652Total Patient Tower Slabs (L2‐L9) cy 5220 $114.00 $595,063 $12.40 $64,726 $4.70 $24,533 $619,601

Continuous Mat Slab Rebar#4 Bars lbs. 183907 $0.49 $90,114 $0.23 $42,299 $0 $132,413#5 Bars lbs. 458786 $0.49 $224,805 $0.23 $105,521 $0 $330,326

Additional Slab Rebar#5 Bars lbs. 21384 $0.49 $10,478 $0.23 $4,918 $0 $15,396#6 Bars lbs. 48896 $0.49 $23,959 $0.23 $11,246 $0 $35,205#7 Bars lbs. 204232 $0.49 $100,074 $0.23 $46,973 $0 $147,047#8 Bars lbs. 22925 $0.49 $11,233 $0.23 $5,273 $0 $16,506

Elev. Slabs including Drop Panels Formwork sf 209610 $1.60 $335,376 $3.15 $660,272 $995,6480'x6.5"Drop Panels @ PT Columns (5000 psi)

Cast In Place Concrete Structure Estimate

Total Foundations Estimate:

Typical Panel cy 2Total Drop Panels (238) cy 477 $114.00 $54,433 $12.40 $5,921 $4.70 $2,244 $62,598

Drop Panel Rebar#4 Bars lbs. 31797 $0.49 $15,581 $0.23 $7,313 $22,894

$2,517,026Total Elevated Slabs Estimate:

16





Fig. 3 Cast-In-Place Concrete Structure Estimate

Item Units Quantity Unit Mat'l CosMat'l Cost Unit Labor Cost Labor Cost Unit Equip. Cost Equip. Cost Total Item CostBeams (5000 psi)

Beams (L1‐L9) cy 8102 $114.00 $923,586 $33.00 $267,354 $12.50 $101,270 $1,292,210Beam Rebar

#4 Bars lbs. 807 $0.47 $379 $0.41 $331 $710#5 Bars lbs. 4531 $0.47 $2,130 $0.41 $1,858 $3,987#6 Bars lbs. 24681 $0.47 $11,600 $0.41 $10,119 $21,719#7 Bars lbs. 95344 $0.47 $44,812 $0.41 $39,091 $83,903#8 Bars lbs. 22513 $0.47 $10,581 $0.24 $5,403 $15,984#9 Bars lbs. 170918 $0.47 $80,331 $0.24 $41,020 $121,352

Beam Formwork (vertical height) sfca 25080 $4.50 $112,860 $5.10 $127,908 $240,768$1,780,633

Columns Columns (LL‐L2) (8000 psi) cy 329 $212.00 $69,748 $21.50 $7,074 $8.15 $2,681 $79,503Columns (L3‐L9) (6000 psi) cy 695 $130.00 $90,350 $21.50 $14,943 $8.15 $5,664 $110,957

Column Rebar #6 Bars lbs. 5383 $0.47 $2,530 $0.44 $2,369 $0 $4,899#7 Bars lbs. 77165 $0.47 $36,268 $0.44 $33,953 $0 $70,220#8 Bars lbs. 75016 $0.47 $35,258 $0.29 $21,755 $0 $57,012#9 Bars lbs. 31552 $0.47 $14,829 $0.29 $9,150 $0 $23,980#10 Bars lbs. 88401 $0.47 $41,548 $0.29 $25,636 $0 $67,185#11 Bars lbs. 21422 $0.47 $10,068 $0.29 $6,212 $0 $16,281

Rectangular Column Formwork lf 600 $0.80 $480 $4.60 $2,760 $3,240Round Column Formwork lf 144 $14.15 $2,038 $13.05 $1,879 $3,917

$437,192

Shear / Reinforced Concrete Walls (5000 psi)Shear Walls (LL‐L9) cy 1357 $114.00 $154,719 $18.05 $24,497 $6.85 $9,297 $188,513

Reinforced Concrete Walls (LL‐L9) cy 938 $114.00 $106,936 $18.05 $16,932 $6.85 $6,426 $130,293 Shear Wall Rebar

#5 Bars lbs. 60438 $0.47 $28,406 $0.22 $13,296 $0 $41,702#6 Bars lbs. 11247 $0.47 $5,286 $0.22 $2,474 $0 $7,760#7 Bars lbs. 12362 $0.47 $5,810 $0.22 $2,720 $0 $8,530

Reinf. Wall Rebar#4 Bars lbs. 2020 $0.47 $949 $0.22 $444 $0 $1,394#5 Bars lbs. 46293 $0.47 $21,758 $0.22 $10,184 $0 $31,942#6 Bars lbs. 31398 $0.47 $14,757 $0.22 $6,908 $0 $21,665

Wall Formwork sfca 60140 $0.76 $45,706 $5.20 $312,728 $358,434deduct 20% for ganged formwork $286,747

$1,076,981

$7,419,651Total Cast‐In‐Place Concrete Estimate:

Total Shear Wall/ Reinforced Wall Estimate:

Total Column Estimate:

Total Beam Estimate:

Cast In Place Concrete Structure Estimate

17





Fig. 4 Structural Steel Estimate

Member Size Unit Quantity Length (LF.) Unit Mat'l Cost Mat'l Cost Unit Labor Cost Labor Cost Unit Equip. Cost Equip. Cost Total Item CostWide‐Flange Shapes

W6x12 LF 19 6 $10.50 $1,197 $3.77 $430 $2.58 $294 $1,921W8x13 LF 11 6 $12.00 $792 $3.77 $249 $2.58 $170 $1,211W8x15 LF 6 6 $13.00 $468 $3.77 $136 $2.58 $93 $697W8x18 LF 11 8 $15.00 $1,320 $3.77 $332 $2.58 $227 $1,879W10x15 LF 11 10 $23.00 $2,530 $3.77 $415 $2.58 $284 $3,229W10x19 LF 10 12 $24.00 $2,880 $3.77 $452 $2.58 $310 $3,642W10x22 LF 12 12 $25.00 $3,600 $3.77 $543 $2.58 $372 $4,514W10x26 LF 1 18 $26.00 $468 $3.77 $68 $2.60 $47 $583W10x30 LF 1 14 $30.00 $420 $3.77 $53 $2.68 $38 $510W10x45 LF 7 14 $55.00 $5,390 $4.11 $403 $2.81 $275 $6,068W10x60 LF 2 12 $65.00 $1,560 $4.20 $101 $2.86 $69 $1,729W12x14 LF 1 4 $15.80 $63 $2.57 $10 $1.76 $7 $81W12x16 LF 72 14 $23.00 $23,184 $2.57 $2,591 $1.76 $1,774 $27,549W12x19 LF 23 18 $24.00 $9,936 $2.57 $1,064 $1.76 $729 $11,729W12x22 LF 23 14 $25.00 $8,050 $2.57 $828 $1.76 $567 $9,444W12x26 LF 2 18 $29.50 $1,062 $2.57 $93 $1.76 $63 $1,218W12x30 LF 5 16 $32.00 $2,560 $2.57 $206 $1.76 $141 $2,906W12x40 LF 5 20 $40.00 $4,000 $2.90 $290 $2.00 $200 $4,490W12x45 LF 11 20 $42.00 $9,240 $2.90 $638 $2.00 $440 $10,318W12x50 LF 2 20 $48.00 $1,920 $2.92 $117 $2.40 $96 $2,133W12x53 LF 15 20 $50.00 $15,000 $2.92 $876 $2.40 $720 $16,596W14x22 LF 4 26 $28.00 $2,912 $2.82 $293 $1.56 $162 $3,368W14x31 LF 1 20 $34.00 $680 $2.51 $50 $1.72 $34 $765W14x145 LF 7 14 $140.00 $13,720 $3.28 $321 $2.30 $225 $14,267W14x159 LF 4 12 $150.00 $7,200 $3.50 $168 $2.45 $118 $7,486W14x176 LF 1 12 $158.00 $1,896 $3.75 $45 $2.75 $33 $1,974W14x211 LF 1 18 $175.00 $3,150 $4.00 $72 $3.00 $54 $3,276W14x233 LF 1 48 $190.00 $9,120 $4.20 $202 $3.15 $151 $9,473W14x283 LF 1 48 $210.00 $10,080 $4.35 $209 $3.30 $158 $10,447W16x26 LF 18 24 $29.50 $12,744 $2.26 $976 $1.55 $670 $14,390W16x31 LF 9 28 $35.00 $8,820 $2.51 $633 $1.72 $433 $9,886W16x36 LF 7 32 $40.00 $8,960 $2.70 $605 $1.82 $408 $9,972W18x21 LF 3 16 $37.00 $1,776 $3.34 $160 $1.68 $81 $2,017W18x35 LF 40 24 $39.50 $37,920 $3.40 $3,264 $1.73 $1,661 $42,845W18x40 LF 20 32 $45.00 $28,800 $3.40 $2,176 $1.73 $1,107 $32,083W18x46 LF 23 38 $51.00 $44,574 $3.50 $3,059 $1.78 $1,556 $49,189W18x50 LF 6 20 $56.50 $6,780 $3.58 $430 $1.82 $218 $7,428W18x55 LF 1 34 $62.00 $2,108 $3.58 $122 $1.82 $62 $2,292W18x60 LF 1 18 $6.00 $108 $3.58 $64 $1.82 $33 $205W21x44 LF 4 20 $49.50 $3,960 $3.07 $246 $1.56 $125 $4,330W21x50 LF 1 28 $56.50 $1,582 $3.07 $86 $1.56 $44 $1,712W21x83 LF 2 32 $80.00 $5,120 $3.30 $211 $1.75 $112 $5,443W21x93 LF 1 38 $82.00 $3,116 $3.33 $127 $1.80 $68 $3,311W24x55 LF 13 24 $62.00 $19,344 $2.94 $917 $1.50 $468 $20,729W24x62 LF 7 32 $70.00 $15,680 $2.94 $659 $1.50 $336 $16,675W24x76 LF 1 36 $85.50 $3,078 $2.94 $106 $1.50 $54 $3,238W24x84 LF 3 28 $94.50 $7,938 $3.03 $255 $1.54 $129 $8,322W27x94 LF 4 26 $106.00 $11,024 $2.75 $286 $1.40 $146 $11,456

$409,023

Structural Steel Estimate

Total Wide‐Flange Member Estimate:

18





Fig. 5 Structural Steel Estimate

Member Size Unit Quantity Length (LF.) Unit Mat'l Cost Mat'l Cost Unit Labor Cost Labor Cost Unit Equip. Cost Equip. Cost Total Item CostSteel Tube Shapes

HSS 10x4x 1/4 Each 3 16 $600.00 $28,800 $45.00 $2,160 $31.00 $1,488 $32,448HSS 10x6x 5/16 Each 5 18 $600.00 $54,000 $45.00 $4,050 $31.00 $2,790 $60,840HSS 10x10x 1/2 Each 2 16 $1,100.00 $35,200 $47.00 $1,504 $32.00 $1,024 $37,728HSS 10x10x 3/8 Each 1 16 $1,100.00 $17,600 $47.00 $752 $32.00 $512 $18,864HSS 10x10x 5/8 Each 1 16 $1,100.00 $17,600 $47.00 $752 $32.00 $512 $18,864HSS 14x10x 5/8 Each 2 16 $1,100.00 $35,200 $47.00 $1,504 $32.00 $1,024 $37,728HSS 16x12x 5/8 Each 2 16 $1,100.00 $35,200 $47.00 $1,504 $32.00 $1,024 $37,728

$244,200

$653,223

Total HSS Member Estimate:

Total Steel Member Estimate:

Structural Steel Estimate

Fig. 6 Composite Slab Estimate

Item Units Quantity Unit Mat'l Cost Mat'l Cost Unit Labor Cost Labor Cost Unit Equip. Cost Equip. Cost Total Item Cost3 1/4" Light Weight Concrete Slab (3500 psi) cy 2117 $106.00 $224,402 $14.20 $30,061 $5.35 $11,326 $265,789

2"x20 Gage Composite Metal Decking sf 7824 $1.63 $12,753 $0.37 $2,895 $0.03 $235 $15,883

6"x 6" W1.4 x W1.4 W.W.F csf 78.24 $12.75 $998 $18.90 $1,479 $0 $2,476

$284,148

Composite Slab Estimate

Total Composite Slab Estimate:

Fig. 7 Precast Concrete Hollow Core Planks Estimate

Item Units Quantity Unit Mat'l Cost Mat'l Cost Unit Labor Cost Labor Cost Unit Equip. Cost Equip. Cost Total Item Cost8" Hollow Planks sf 6168 6.7 41325.6 0.91 5612.88 0.58 3577.44 50515.92

2" Concrete Topping cy 1028 $106.00 $108,968 $14.20 $14,598 $5.35 $5,500 129065.4

6"x 6" W1.4 x W1.4 W.W.F csf 61.68 $12.75 $786 $18.90 $1,166 $0 $1,952

$181,533

Precast Concrete Hollow Core Planks Estimate

Total Precast Concrete Planks Estimate:

19



20

General Conditions Estimate

***Please refer to Fig. 8 on the following page for the General Conditions Estimate for the BWMC Women’s Center and Inpatient Tower.

A General Conditions Estimate was developed for the BWMC Women’s Center and Inpatient Tower. The following page shows the grouping of all the items included for the estimate. For this estimate, both the 2007 R.S. Means Facilities Construction Cost Data and Whiting-Turner’s Cost Data were used as cost references. The estimate was performed using the same items listed in Whiting-Turner’s General Conditions Budget so that the estimate and budget could be compared. Many of the items listed in the estimate are calculated based on monthly costs. For these items, the project duration is assumed to be thirty-three months (June 2006-Febuary 2009). For the project team, various durations were used for each employee depending on the estimated time that each employee will spend on the job site. The construction fee for this project is assumed to be 1.5% due to the large size of this project. The estimate cost is approximately $2,834,700. The actual budget is $1,541,270. One of the main reasons for the difference in cost could be the project staff estimate. The unit costs were taken from R.S. Means rather than from Whiting-Turner’s data. The costs for the employees depend on the company and to some extent, can be difficult to estimate.





Fig. 8 General Conditions Estimate

Item Unit Quantity Mat'l Unit Cost Mat'l Cost Labor Unit Cost Labor Cost Equipment Unit Cost Equipment Cost Total CostProject Staff

(2) Project Engineers Month 31 1085 134540 $134,540(1) Assistant Project Manager Month 31 1250 155000 $155,000(1) Assistant Superintendent Month 34 1500 204000 $204,000

(1) Project Manager Month 33 1550 204600 $204,600(1) Superintendent Month 35 1650 231000 $231,000

(1) Senior Project Manager Month 34 2025 275400 $275,400(1) MEP Project Manager Month 34 1775 241400 $241,400

(1) General Laborer Month 30 1150 138000 $138,000

Project DocumentationDrawings and Specifications Sets 120 $700.00 $84,000 $84,000

Engineering ServicesAs‐Built Surveys Acres 2.16 $1,160.00 $2,506 $300.00 $648 $20.00 $43 $3,197

Topographic Surveys Acres 2.16 $17.00 $37 $294.00 $635 $17.60 $38 $710

Temporary Facilities50'x10' Job Trailers (Rented/ Month) Each 2 $330.00 $660 $660

Sanitary Facilities Each 135 $110.00 $14,850 $14,850Project Signs SF 30 $16.55 $497 $497

Field Office ExpensesOffice Equipment Month 33 $150.00 $4,950 $4,950Office Supplies Month 33 $95.00 $3,135 $3,135Telephone bill Month 33 $210.00 $6,930 $6,930

Field Office Lights and HVAC Month 33 $110.00 $3,630 $3,630

Temporary UtilitesHeat CSF 3556 $10.35 $36,805 $3.04 $10,810 $47,615

Lighting CSF 3556 $4.00 $14,224 $15.00 $53,340 $67,564Power for Lighting CSF 3556 $5,334

Power for Job Duration CSF 3556 $266,700Water Bill Month 33 $62.00 $2,046 $2,046

Temporary Barricades5' Ht. Temporary Fencing LF. 50 $6.00 $300 $1.15 $58 $358

Guardrail LF. 6230 $1.14 $7,102 $2.94 $18,316 $25,418

Clean‐UpDaily Clean‐Up MSF 356 $1.70 $605 $32.50 $11,570 $2.21 $787 $12,962Final Clean‐Up MSF 450 $2.71 $1,220 $45.00 $20,250 $3.07 $1,382 $22,851

Dumpsters Pulls 500 $345.00 $172,500 $172,500

EquipmentMaterial Hoist Each 1 $350,000.00 $350,000 $350,000

Small Tools Total 1 $50,000.00 $50,000 $50,000

$2,729,846Insurance

Builder's Risk Insurance 0.50% $13,649Worker's Compensation 18.39% $50,200

Construction Manager Fee 1.5% $41,000

$2,834,695

Total Costs

Total Project General Conditions


21




Appendix A


22

Item Units QuantityFootings

Footing 1 (36) cy 16664Footing 2 (15) cy 469Footing 3 (2) cy 1001Footing 4 (3) cy 1071Footing 5 (2) cy 840Footing 6 (2) cy 325Footing 7 (3) cy 884

Strip Footing 1 (2) cy 4277Strip Footing 2 (1) cy 218

954

Slab on Grade cy 479

Floor SlabsWest Lobby Slabs (L1‐L9) cy 2387

Patient Tower Level 1 cyPatient Tower (L2‐L9) cy 5220

5986

Drop Panels (238 Panels)Patient Tower (L1‐L9) cy 477

Mat Slabs cyMat Slab 1 3

Mat Slab 2‐ Sec. 1 cy 1Mat Slab 2‐ Sec. 2 cy 3Mat Slab 3‐ Sec. 1 cy 2Mat Slab 3‐ Sec. 2 cy

426

Shear WallsShear Wall 1 (4) cy 10152Shear Wall 2 (5) cy 5400Shear Wall 3 (1) cy 10152Shear Wall 4 (2) cy 3920Shear Wall 5 (3) cy 7020

Reinforced Concrete Walls10" Wall cy 126012" Wall cy 1868114" Wall cy 112018" Wall cy 4266

2295

Cast In Place Concrete Takeoff

Total Concrete Wall

Total Patient Tower Slabs

Total Footing Concrete

Total Mat Slab Concrete

766

087904526488502

Item Units QuantityBeams

Beam 1 cyBeam 2 cy 2Beam 3 cyBeam 4 cy 5Beam 5 cy 1Beam 6 cy 3Beam 7 cy 16759Beam 8 cy 14365Beam 9 cyBeam 10 cy 2262Beam 11 cy 10266Beam 12 cy 3480Beam 13 cy 14768Beam 14 cy 2320Beam 15 cy 340Beam 16 cy 728Beam 17 cy 26208Beam 19 cy 6431Beam 20 cy 34565Beam 21 cy 12552Beam 22 cy 10247Beam 23 cy 8320Beam 24 cy 480Beam 26 cy 6916Beam 27 cy 2610Beam 28 cy 1170Beam 29 cy 181Beam 30 cy 1820Beam 32 cy 5808Beam 33 cy 676Beam 34 cy 228Beam 35 cy 1484Beam 36 cy 780Beam 38 cy 234Beam 39 cy 3536Beam 40 cy 50Beam 41 cy 1170Beam 42 cy 208Beam 43 cy 919Beam 44 cy 4938Beam 45 cy 4160Beam 46 cy 1044Beam 47 cy 716Beam 48 cy 131Beam 49 cy 1248

8102

ColumnsColumn 1 (43 Col.) cy 892Column 2 (2 Col.) cy 15Column 3 (9 Col.) cy 117

1024

Total Beam Concrete

Total Column Concrete

Cast In Place Concrete Takeoff

477503953482170120

923




Appendix A


Item Quantity Length (ft) Total Length Wt. Lbs/ ft. Lbs. TonsFoundations

Typical FootingsFooting 1 (9)

#6 Bars 72 4 288 1.502 433 0.22Footing 2 (3) 0 0 0.00

#7 Bars 30 5 150 2.044 307 0.15Footing 3 (8) 0 0 0.00

#9 Bars 192 11 2112 3.400 7181 3.59Footing 4 (30) 0 0 0.00

#10 Bars 840 13 10500 4.303 45182 22.59Footing 5 (3) 0 0 0.00

#10 Bars 43 10 430 4.303 1850 0.93#10 Bars 34 14 459 4.303 1975 0.99

Footing 6 (1) 0 0 0.00#8 Bars 20 9 180 2.670 481 0.24#8 Bars 9 20 180 2.670 481 0.24#10 Bars 20 9 180 4.303 775 0.39#10 Bars 9 20 180 4.303 775 0.39

Footing 7 (2) 0 0 0.00#10 Bars 24 10 240 4.303 1033 0.52

Footing 8 (2) 0 0 0.00#4 Bars 16 4 56 0.668 37 0.02

Footing 9 (1) 0 0 0.00#7 Bars 14 6 84 2.044 172 0.09

Footing 10 0 0 0.00#7 Bars 16 6 88 2.044 180 0.09

Footing 11 0 0 0.00#7 Bars 12 11 132 2.044 270 0.13#9 Bars 6 5 30 3.400 102 0.05



Continuous Footing 1 0#4 Bars 5 564 2820 0.668 1884 0.94

Continuous Footing 2 0#4 Bars 3 84 252 0.668 168 0.08

Total Footing Rebar (lbs.; tons) 66209 33.10Footing Rebar (#4, #6, #7,#8, #9, #10) 68131 433 1206 3610 7283 51589

Rebar Takeoff

0 0.00

0 0.00

23




Appendix A


Item Quantity Length (ft) Total Length Wt. Lbs/ ft. Lbs. TonsFloor Slabs

Continuous Rebar Patient Tower Slab L1 0 0 0.00

#4 Bars 42 145 6090 0.668 4068 2.03#5 Bars 42 145 6090 1.043 6352 3.18

Patient Tower Slab L1 0 0 0.00#4 Bars 192 32 6144 0.668 4104 2.05#5 Bars 192 32 6144 1.043 6408 3.20





Patient Tower Slab L2‐L9 0 0 0.00#4 Bars 336 145 48720 0.668 32545 16.27#5 Bars 336 145 48720 1.043 50815 25.41






West Lobby Slabs L1‐L9 0 0 0.00#5 Bars 1971 40 78840 1.043 82230 41.12




Total Slab Rebar (lbs.; tons)Elevated Slab Rebar (#4, #5) 183907 458786

Rebar Takeoff

24




Appendix A


Item Quantity Length (ft) Total Length Wt. Lbs/ ft. Lbs. TonsDrop Panels (238 Total)

#4 Bars 4760 10 47600 0.668 31797 15.90

Add. Rebar (9 Floors)#5 Bars 207 8 1656 1.043 1727 0.86#5 Bars 594 10 5940 1.043 6195 3.10#5 Bars 99 12 1188 1.043 1239 0.62#5 Bars 27 14 378 1.043 394 0.20#5 Bars 486 16 7776 1.043 8110 4.06#5 Bars 54 18 972 1.043 1014 0.51#5 Bars 54 20 1080 1.043 1126 0.56#5 Bars 54 28 1512 1.043 1577 0.79#6 Bars 119 8 952 1.502 1430 0.71#6 Bars 153 10 1530 1.502 2298 1.15#6 Bars 42 12 504 1.502 757 0.38#6 Bars 445 16 7120 1.502 10694 5.35#6 Bars 393 18 7074 1.502 10625 5.31#6 Bars 43 20 860 1.502 1292 0.65#6 Bars 6 22 132 1.502 198 0.10#6 Bars 279 26 7254 1.502 10896 5.45#6 Bars 216 28 6048 1.502 9084 4.54#6 Bars 36 30 1080 1.502 1622 0.81#7 Bars 261 12 3132 2.044 6402 3.20#7 Bars 1566 16 25056 2.044 51214 25.61#7 Bars 621 18 11178 2.044 22848 11.42#7 Bars 747 20 14940 2.044 30537 15.27#7 Bars 126 24 3024 2.044 6181 3.09#7 Bars 720 26 18720 2.044 38264 19.13#7 Bars 315 28 8820 2.044 18028 9.01#7 Bars 396 30 11880 2.044 24283 12.14#7 Bars 99 32 3168 2.044 6475 3.24#8 Bars 126 16 2016 2.670 5383 2.69#8 Bars 81 20 1620 2.670 4325 2.16#8 Bars 99 22 2178 2.670 5815 2.91#8 Bars 99 28 2772 2.670 7401 3.70

Add. Elev. Slab Rebar (#5, #6, #7, #8) 21384 48896 204232 22925

Rebar Takeoff

25




Appendix A


Item Quantity Length (ft) Total Length Wt. Lbs/ ft. Lbs. TonsTypical Reinforced Walls 0 0 0.00

10" Wall 0 0 0.00#4 Bars 12 126 1512 0.668 1010 0.51#4 Bars 126 12 1512 0.668 1010 0.51

12" Wall 0 0 0.00#5 Bars 24 527 12648 1.043 13192 6.60#5 Bars 1054 12 12648 1.043 13192 6.60

12" Wall 0 0 0.00#5 Bars 44 158 6952 1.043 7251 3.63#5 Bars 316 22 6952 1.043 7251 3.63

12" Wall 0 0 0.00#5 Bars 72 36 2592 1.043 2703 1.35#5 Bars 72 36 2592 1.043 2703 1.35

14" Wall 0 0 0.00#6 Bars 24 80 1920 1.502 2884 1.44#6 Bars 160 12 1920 1.502 2884 1.44

18" Wall 0 0 0.00#6 Bars 24 474 11376 1.502 17087 8.54#6 Bars 474 12 5688 1.502 8543 4.27

Total Wall Rebar (lbs.; tons) 178282 82.96Reinf. Wall Rebar (#4 #5, #6) 2020 46293 31398

Beams (9 Levels) 0 0 0.00Beam 1 16 0

#6 Bars 8 16 128 1.502 192 0.10#8 Bars 6 16 96 2.670 256 0.13#9 Bars 7 16 112 3.400 381 0.19

Beam 2 84 0#7 Bars 9 84 756 2.044 1545 0.77#9 Bars 18 84 1512 3.400 5141 2.57

Beam 3 32 0#7 Bars 8 32 256 2.044 523 0.26#9 Bars 14 32 448 3.400 1523 0.76

Beam 4 184 0 0 0.00#7 Bars 8 184 1472 2.044 3009 1.50#9 Bars 10 184 1840 3.400 6256 3.13

Beam 5 36 0#8 Bars 8 36 288 2.670 769 0.38#9 Bars 13 36 468 3.400 1591 0.80

Beam 6 96 0#7 Bars 8 96 768 2.044 1570 0.78#9 Bars 17 96 1632 3.400 5549 2.77

Beam 7 476 0 0 0.00#7 Bars 8 476 3808 2.044 7784 3.89#9 Bars 11 476 5236 3.400 17802 8.90

Beam 8 408 0 0 0.00#7 Bars 9 408 3672 2.044 7506 3.75#9 Bars 10 408 4080 3.400 13872 6.94

Rebar Takeoff

0 0.00

0 0.00

0 0.00

0 0.00

0 0.00

26




Appendix A


Item Quantity Length (ft) Total Length Wt. Lbs/ ft. Lbs. TonsBeams (9 Levels)

Beam 9 142 0 0 0.00#5 Bars 8 142 1136 1.043 1185 0.59

Beam 10 156 0 0 0.00#7 Bars 6 156 936 2.044 1913 0.96#8 Bars 4 156 624 2.670 1666 0.83

Beam 11 708 0 0 0.00#7 Bars 6 708 4248 2.044 8683 4.34#8 Bars 4 708 2832 2.670 7561 3.78

Beam 12 180 0 0 0.00#4 Bars 2 180 360 0.668 240 0.12#7 Bars 4 180 720 2.044 1472 0.74#8 Bars 6 180 1080 2.670 2884 1.44

Beam 13 568 0 0 0.00#6 Bars 12 568 6816 1.502 10238 5.12

Beam 14 464 0 0 0.00#5 Bars 3 464 1392 1.043 1452 0.73#7 Bars 4 464 1856 2.044 3794 1.90

Beam 15 136 0 0 0.00#5 Bars 3 136 408 1.043 426 0.21#7 Bars 4 136 544 2.044 1112 0.56

Beam 16 112 0 0 0.00#5 Bars 8 112 896 1.043 935 0.47#9 Bars 10 112 1120 3.400 3808 1.90

Beam 17 1008 0 0 0.00#7 Bars 7 1008 7056 2.044 14422 7.21#9 Bars 10 1008 10080 3.400 34272 17.14

Beam 19 224 0 0 0.00#8 Bars 8 224 1792 2.670 4785 2.39#9 Bars 7 224 1568 3.400 5331 2.67

Beam 20 1204 0 0 0.00#7 Bars 7 1204 8428 2.044 17227 8.61#9 Bars 9 1204 10836 3.400 36842 18.42

Beam 21 196 0 0 0.00#7 Bars 8 196 1568 2.044 3205 1.60#9 Bars 8 196 1568 3.400 5331 2.67


Beam 23 256 0 0 0.00#7 Bars 8 256 2048 2.044 4186 2.09#9 Bars 13 256 3328 3.400 11315 5.66

Beam 24 64 0 0 0.00#5 Bars 5 64 320 1.043 334 0.17#7 Bars 7 64 448 2.044 916 0.46

Beam 26 304 0 0 0.00#6 Bars 17 304 5168 1.502 7762 3.88

Rebar Takeoff

27




Appendix A




Beam 28 156 0 0 0.00#6 Bars 10 156 1560 1.502 2343 1.17

Beam 29 32 0 0 0.00#5 Bars 6 32 192 1.043 200 0.10


Beam 32 88 0 0 0.00#4 Bars 2 88 176 0.668 118 0.06#7 Bars 16 88 1408 2.044 2878 1.44

Beam 33 26 0 0 0.00#7 Bars 14 26 364 2.044 744 0.37

Beam 34 8 0 0 0.00#7 Bars 12 8 96 2.044 196 0.10


Beam 36 40 0 0 0.00#6 Bars 5 40 200 1.502 300 0.15#7 Bars 12 40 480 2.044 981 0.49

Beam 38 12 0 0 0.00#6 Bars 18 12 216 1.502 324 0.16

Beam 39 136 0 0 0.00#6 Bars 14 136 1904 1.502 2860 1.43

Beam 40 10 0 0 0.00#7 Bars 12 10 120 2.044 245 0.12

Beam 41 52 0 0 0.00#6 Bars 4 52 208 1.502 312 0.16#8 Bars 8 52 416 2.670 1111 0.56

Beam 42 16 0 0 0.00#7 Bars 12 16 192 2.044 392 0.20

Beam 43 32 0 0 0.00#8 Bars 7 32 224 2.670 598 0.30#9 Bars 10 32 320 3.400 1088 0.54

Rebar Takeoff

28




Appendix A



Beam 44 172 0 0 0.00#7 Bars 8 172 1376 2.044 2813 1.41#9 Bars 10 172 1720 3.400 5848 2.92

Beam 45 160 0 0 0.00#7 Bars 8 160 1280 2.044 2616 1.31#9 Bars 10 160 1600 3.400 5440 2.72




Beam 49 64 0 0 0.00#7 Bars 7 64 448 2.044 916 0.46#9 Bars 10 64 640 3.400 2176 1.09

Total Beam Rebar (lbs.; tons) 318794 159.40Beam Rebar (#4, #5, #6, #7, #8, #9) 807 4531 24681 95344 22513 170918

Column 1 (6 Col.) 0 0 0.00#7 Bars 96 52 4992 2.044 10204 5.10#8 Bars 96 24 2304 2.670 6152 3.08#9 Bars 96 36 3456 3.400 11750 5.88



Column 4 (13 Col.) 0 0 0.00#7 Bars 156 112 17472 2.044 35713 17.86#7 Bars 137 112 15288 2.044 31249 15.62

Column 5 (2 Col.) 0 0 0.00#6 Bars 16 112 1792 1.502 2692 1.35#6 Bars 16 112 1792 1.502 2692 1.35

Total Column Rebar (lbs.; tons) 339413 169.71Column Rebar (#6, #7, #8, #9, #10, #11) 5383 77165 75016 31552 88401 21422

Rebar Takeoff

29




Appendix A


Member Size Quantity Length (LF.)W6x12 19 6W8x13 11 6W8x15 6 6W8x18 11 8W10x15 11 10W10x19 10 12W10x22 12 12W10x26 1 18W10x30 1 14W10x45 7 14W10x60 2 12W12x14 1 4W12x16 72 14W12x19 23 18W12x22 23 14W12x26 2 18W12x30 5 16W12x40 5 20W12x45 11 20W12x50 2 20W12x53 15 20W14x22 4 26W14x31 1 20W14x145 7 14W14x159 4 12W14x176 1 12W14x211 1 18

Structural Steel Takeoff

Member Size Quantity Length (LF.)W14x233 1 48W14x283 1 48W16x26 18 24W16x31 9 28W16x36 7 32W18x21 3 16W18x35 40 24W18x40 20 32W18x46 23 38W18x50 6 20W18x55 1 34W18x60 1 18W21x44 4 20W21x50 1 28W21x83 2 32W21x93 1 38W24x55 13 24W24x62 7 32W24x76 1 36W24x84 3 28W27x94 4 26

HSS 10x4x 1/4 3 16HSS 10x6x 5/16 5 18HSS 10x10x 1/2 2 16HSS 10x10x 3/8 1 16HSS 10x10x 5/8 1 16HSS 14x10x 5/8 2 16HSS 16x12x 5/8 2 16

Structural Steel Takeoff

Item Units Quantity8" Hollow Planks sf 6168

2" Concrete Topping cy 1028

6"x 6" W1.4 x W1.4 W.W.F csf 6168

Precast Concrete Hollow Core Planks Takeoff

Item Units Quantity3 1/4" Concrete Slab

South Bridge (L2‐L6) cy 1515North Bridge (L4‐L6) cy 429

Atrium Area (L3) cy 173Total Light‐Weight Concrete cy 2117

2"x20 Gage Non‐cellular Composite Metal DeckingSouth Bridge (L2‐L6) sf 5600North Bridge (L4‐L6) sf 1584

Atrium Area (L3) sf 640

Total Metal Decking sf 7824

W1.4 x W1.4 W.W.F csf 7824

Composite Slab Takeoff

30

Technical Assigment #2 - engr.psu.edu · PDF fileTechnical Assignment 2: Construction Project...

Documents

Transcript of Technical Assigment #2 - engr.psu.edu · PDF fileTechnical Assignment 2: Construction Project...